We want to set Purchasing Group as display mode in PR & PO . We have configured it, but facing problem as follow.

When we create PR with Account Assignment Standard(Blank) it captures Purchasing Group from material master, but if we take Account Assignment(Asset) then Purchasing Group remain blank.

Our requirement is when Account Assignment is Standard then Purchasing Group should be in display mode and other then Standard it should ask for Purchasing Group or is there any other solution. We want Purchasing Group should come from system.